Door-locking device



Oct. 5 1926. 4 1,602,264 5R. B. .HuTcHlsoN DOOR LOCKING`DEVIGE FiledlJuly 25. 1923 ylNv N'roR .5. QM'VM/ 6m uti Fe.tentati @caga massa-nooit-Lomme nnvrcn.

Application led. July 25,

li/ly invention relates to door bolts, such` as is employed either atthe top, bottom, or at both extremes of large doors such as those ofgarages, barns, or other buildings.

The object of my invention is to provide i device of the above classembodying such -haracteristics as practicability, simplicity fstructure, strength and durability and; hat can be manufactured Vandsol-d to the consumer at a reasonable price.

Vith the above object ink view, my invention consists in certainfeatures of construction, arrangement of parts, their cornhination andco-operation as will be hereinafter more fully described andparticularly pointed out in the appended claim.

ln the accompanying drawings, forming part of this specification- Figure1 is a vertical front my improved bolt. l

Fig. 2 is a vertical side elevation of the same. f

Fig. is transverse section through the ldefice on thepline ll--lll ofFig. 1, and

4 is a plan View of the striker plate er keeper. f

The device comprises a boltholder or attaching means of sheet metalincluding the body portion, 1, h ving outstanding end lugs, 2, and theintermediate and outstandparallel ianges, 3, spaced at their ends fromdisposed at right angles tov said lugs,2. The body portion is providedwith holes, 4, foi1 the reception of screws to fasten the same to'adoor, 5. The bolt, 6.formed of a substantial bar of metal, lcircular incrosssection, is loosely fitted through openings in the lugs, 2, and isprovided with 'a conical or tapered point, 6', of aboutfortyiive-degrees, and with a locking pin, 7 the bolt, 6, is rigidlysecured an Voperating extension in the form of a rod, 8, yof conrsiderable less area in cross-section, the free end of which is formedinto a loop, 9. This extension, 8, is looselyrfitted through openings inthe spaced brackets, 10k-and l11, respectively, each of which isprovidedwith y holes, 12, through which screws pass in securing thebrackets .to the door. Disposed about the extension rod, 8, between theconnecting end of the bolt and bracket, 10, is a `spiral spring, 13,which maintains tension on theY bolt at all times. A' striker plate. orkeeper, 14, provided, 'with a bolt elevation of opening,prefer ablyoftaper form, and with ToV 192s. ,serial ,653530. i

screw openings, 16, is attached by screws to the door frame, 17, in linewith theibolt. rlhe device, as shown in Figs. 1 and 2, 1s in lockedposition'. To unlock the bolt, simply grasp the loop portiom, of the rodextension, turning to the .right to cause the locking pin, 7 to passfrom'thev 'space between the lug, 2, and upper end of flange l3.

lhen by pulling downward the spring, 18,

is overcome and the bolt, 6, caused to pass' out of the striker plate14.'` Thev pull is continued until the locking pin engages the lug 2, atwhich time the rod is turned to-V .ward the left, or right, causing thelocking pin to engage beneath the lower end ofthe flange 3, locking thebolt in open position; To lock the bolt itis only necessary to turn therod to release ythe locking pin 7 and allow the action of the springy 13to force the bolt in locked position.

By `forming the bolt with a conical point, preferably of `aboutforty-five degrees, it becomes self centering with the striker plate,14, an-d it may be readily forced into the striker plate, opening eventhough the door shouldsag sufficient to cause unalignment between thebolt and the striker plate.

.AYaiin by providing the bolt with a rigid extension the operation ispositive, besides the extension being of much less area in cross-sectionit is much llighter and reduces the cost than if it were all of uniformdiameter and rpermits the bolt, 6proper to beA of such diameter as willgive great strength.

While the device is Vshowngas applied to the upper partof adoor,'itris.evident that it may be applied to the lower part, or on eachend, as desired.V l

Various modifications in structure and' details maybe madewithoutdeparting fromv the spirit of my inventionk and be within the scope ofthe appended claim. 'f

I claim as' myinvention and" desire to secure by Letters Patents- A doorlocking device having a bolt holder comprising a flat plate adapted tobe' attached to a door, upturned parallel flangeson each end of saidplate and apertured `in alignment with the longitudinal center thereof,upturned parallel flanges at each side of said plate and disposedlongitudinally thereof vwith the ends .of said flanges terminating inspaced relation from said end flanges, a slidable bolt member disposedthrough the apertures of said end flanges and guided between saidside'langes for longitudinal movement relative tojsaid plate, a stem'extendingV from Said bolt member, spaced brackets supportingsaid stem atintervals throughout its length, said brackets being adapted forattachment to a door on which said plate is mounted, anfop'eratinghandle on said stem for manual movementV 1 of said bolt member, a coilexpansion spring surrounding said stem between one of said brackets andthe bolt memberA for normal projection-bf'said bolt mem-ber,V and. a reftaming'pin Carried by Said bolt member for Yengagement behind Said sideflanges lfor- ROBERT B. HUTCHISON.

